Delo Gum 3699

Description

1C acetic-acid-crosslinking silicone rubber, very high temperature resistance, firm.

• Color: red
• Weight: 375 g (310 ml)
• Decomposition product acetic acid Density [g/cm³] at room temperature (approx. 23 °C): 1.2
• Viscosityat 23 °C: pasty
• Processing temperature [°C]: 5 to 35
• Skin formation time [min]: 5
• Deep curing [mm/24 h]: 2
• Tensile strength [MPa]: 3
• Elongation at tear [%]: 300
• Shore hardness A: 35
• Shrinkage [vol. %]: 3
• Water absorption [weight %]: 0.2
• Storage life at room temperature (approx. 23 °C) in unopened original container up to 310 ml(375 g): 12 months
• Acetic-acid-crosslinking silicone rubber (RTV-1 silicone rubber)
• One-component, solvent-free, high-temperature-resistant

Cures at room temperature under influence of humidity to a permanently elastic material. A small amount of acetic acid is decomposed during curing (polycondensation). Curing starts at the surface of the silicone (contact with the air humidity); a dry skin is formed already after a few minutes. Deep curing of the silicone rubber proceeds with approx. 2 mm / 24 h.

Product benefits

Leading characteristics are high temperature resistance up to +300 °C, good bonding strength on different materials, high strength, fast curing, pasty, firm. Generally, the product is used in a temperature range of -50 °C up to +300 °C; related to the application, other limits may be more reasonable. Compliant with RoHS directive 2015/863/EU.

Supplied ready for use and can be processed directly from the bottle or cartridge.

Application

Especially suitable for elastic, equalizing sealing and bonding of same and different materials preferably used in mechanical engineering and glass design.